./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f731faf9d41ed60f5858e3dbd50ffba002d2a56a92297f4715b69207f896c11 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:04:02,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:04:02,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:04:02,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:04:02,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:04:02,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:04:02,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:04:02,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:04:02,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:04:02,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:04:02,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:04:02,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:04:02,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:04:02,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:04:02,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:04:02,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:04:02,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:04:02,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:04:02,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:04:02,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:04:02,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:04:02,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:04:02,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:04:02,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:04:02,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:04:02,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:04:02,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:04:02,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:04:02,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:04:02,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:04:02,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:04:02,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:04:02,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:04:02,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:04:02,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:04:02,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:04:02,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:04:02,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:04:02,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:04:02,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:04:02,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:04:02,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:04:02,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:04:02,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:04:02,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:04:02,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:04:02,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:04:02,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:04:02,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:04:02,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:04:02,161 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:04:02,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:04:02,164 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:04:02,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:04:02,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:04:02,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:04:02,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:04:02,166 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:04:02,166 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:04:02,166 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:04:02,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:04:02,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:04:02,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:04:02,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:04:02,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:04:02,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:04:02,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:04:02,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:02,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:04:02,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:04:02,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:04:02,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:04:02,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:04:02,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f731faf9d41ed60f5858e3dbd50ffba002d2a56a92297f4715b69207f896c11 [2021-12-15 14:04:02,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:04:02,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:04:02,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:04:02,352 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:04:02,352 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:04:02,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-12-15 14:04:02,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59caee83a/e9af873047a44836a85bf1ba9a040b82/FLAGee65b2d86 [2021-12-15 14:04:02,762 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:04:02,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-12-15 14:04:02,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59caee83a/e9af873047a44836a85bf1ba9a040b82/FLAGee65b2d86 [2021-12-15 14:04:03,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59caee83a/e9af873047a44836a85bf1ba9a040b82 [2021-12-15 14:04:03,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:04:03,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:04:03,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:03,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:04:03,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:04:03,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:03" (1/1) ... [2021-12-15 14:04:03,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795573ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:03, skipping insertion in model container [2021-12-15 14:04:03,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:03" (1/1) ... [2021-12-15 14:04:03,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:04:03,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:03,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:03,430 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-12-15 14:04:03,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7577fd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:03, skipping insertion in model container [2021-12-15 14:04:03,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:03,431 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 14:04:03,433 INFO L158 Benchmark]: Toolchain (without parser) took 294.51ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 87.4MB in the end (delta: 922.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:04:03,434 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:04:03,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.02ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 87.4MB in the end (delta: 922.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:04:03,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.02ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 87.4MB in the end (delta: 922.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f731faf9d41ed60f5858e3dbd50ffba002d2a56a92297f4715b69207f896c11 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:04:04,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:04:04,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:04:04,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:04:04,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:04:04,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:04:04,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:04:04,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:04:04,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:04:04,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:04:04,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:04:04,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:04:04,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:04:04,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:04:04,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:04:04,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:04:04,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:04:04,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:04:04,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:04:04,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:04:04,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:04:04,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:04:04,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:04:04,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:04:04,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:04:04,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:04:04,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:04:04,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:04:04,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:04:04,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:04:04,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:04:04,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:04:04,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:04:04,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:04:04,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:04:04,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:04:04,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:04:04,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:04:04,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:04:04,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:04:04,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:04:04,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:04:04,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:04:04,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:04:04,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:04:04,951 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:04:04,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:04:04,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:04:04,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:04:04,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:04:04,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:04:04,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:04:04,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:04:04,955 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:04:04,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:04:04,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:04:04,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:04:04,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:04:04,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:04,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:04:04,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:04:04,957 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:04:04,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:04:04,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:04:04,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:04:04,958 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f731faf9d41ed60f5858e3dbd50ffba002d2a56a92297f4715b69207f896c11 [2021-12-15 14:04:05,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:04:05,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:04:05,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:04:05,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:04:05,274 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:04:05,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-12-15 14:04:05,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3edb0978a/10042a90a839423baad53f45e87149a9/FLAG5e80421f4 [2021-12-15 14:04:05,747 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:04:05,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_2.i [2021-12-15 14:04:05,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3edb0978a/10042a90a839423baad53f45e87149a9/FLAG5e80421f4 [2021-12-15 14:04:05,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3edb0978a/10042a90a839423baad53f45e87149a9 [2021-12-15 14:04:05,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:04:05,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:04:05,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:05,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:04:05,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:04:05,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:05" (1/1) ... [2021-12-15 14:04:05,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b5079d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:05, skipping insertion in model container [2021-12-15 14:04:05,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:04:05" (1/1) ... [2021-12-15 14:04:05,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:04:05,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:06,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:06,250 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 14:04:06,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:04:06,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:06,334 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:04:06,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:04:06,427 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:04:06,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06 WrapperNode [2021-12-15 14:04:06,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:04:06,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:04:06,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:04:06,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:04:06,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,483 INFO L137 Inliner]: procedures = 169, calls = 80, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 65 [2021-12-15 14:04:06,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:04:06,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:04:06,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:04:06,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:04:06,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:04:06,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:04:06,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:04:06,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:04:06,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (1/1) ... [2021-12-15 14:04:06,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:04:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:04:06,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:04:06,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:04:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 14:04:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 14:04:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:04:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:04:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:04:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:04:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:04:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:04:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:04:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:04:06,675 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:04:06,676 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:04:06,835 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:04:06,839 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:04:06,839 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 14:04:06,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:04:06 BoogieIcfgContainer [2021-12-15 14:04:06,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:04:06,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:04:06,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:04:06,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:04:06,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:04:05" (1/3) ... [2021-12-15 14:04:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f924205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:04:06, skipping insertion in model container [2021-12-15 14:04:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:04:06" (2/3) ... [2021-12-15 14:04:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f924205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:04:06, skipping insertion in model container [2021-12-15 14:04:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:04:06" (3/3) ... [2021-12-15 14:04:06,846 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_2.i [2021-12-15 14:04:06,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:04:06,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-12-15 14:04:06,888 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:04:06,893 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:04:06,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-12-15 14:04:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 45 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-15 14:04:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 14:04:06,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:04:06,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:04:06,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 13 more)] === [2021-12-15 14:04:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:04:06,916 INFO L85 PathProgramCache]: Analyzing trace with hash 566157246, now seen corresponding path program 1 times [2021-12-15 14:04:06,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:04:06,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732117127] [2021-12-15 14:04:06,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:04:06,925 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:04:06,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:04:06,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:04:06,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 14:04:06,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 14:04:07,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:04:07,187 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:04:07,190 INFO L158 Benchmark]: Toolchain (without parser) took 1420.90ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 42.7MB in the end (delta: -10.2MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-15 14:04:07,190 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 54.5MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:04:07,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.56ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 50.2MB in the end (delta: -17.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-12-15 14:04:07,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.44ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:04:07,194 INFO L158 Benchmark]: Boogie Preprocessor took 32.03ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:04:07,195 INFO L158 Benchmark]: RCFGBuilder took 323.31ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 33.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 14:04:07,195 INFO L158 Benchmark]: TraceAbstraction took 348.01ms. Allocated memory is still 71.3MB. Free memory was 33.2MB in the beginning and 42.7MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:04:07,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 54.5MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.56ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 32.3MB in the beginning and 50.2MB in the end (delta: -17.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.44ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.03ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.31ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 33.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 348.01ms. Allocated memory is still 71.3MB. Free memory was 33.2MB in the beginning and 42.7MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:04:07,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable